Texas Instruments F280037SPNR

Overview

F280037SPNR from Texas Instruments is a C2000™ real-time microcontroller featuring a 120-MHz TMS320C28x DSP core with IEEE 754 FPU, 256KB ECC-protected flash across two banks, 69KB ECC-protected RAM, and integrated CLA and CLB for deterministic motor control. It delivers 150-ps high-resolution PWM on eight channels and supports CAN FD, FSI (200 Mbps), and three 4-MSPS 12-bit ADCs for power electronics applications including servo drives and EV charging modules.

For engineers reviewing the F280037SPNR datasheet, F280037SPNR pinout, F280037SPNR application, or F280037SPNR equivalent, key selection criteria include its 256KB flash capacity (vs. 384KB in F280039 variants), CLA/CLB availability, 64-pin LQFP (PM) package, -40°C to 125°C operating range, and functional safety support in Q1 variants - all critical for industrial motor control and digital power designs.

Technical Context

The F280037SPNR implements a dual-core real-time architecture: the C28x CPU executes floating-point control loops at 120 MHz with TMU and VCRC acceleration, while the independent 120-MHz CLA offloads time-critical tasks like current loop computation. Its analog subsystem tightly couples three 4-MSPS ADCs, four CMPSS modules with 12-bit DAC references, and two buffered DAC outputs to ePWM timing for closed-loop precision.

Control peripherals include 16 ePWM channels (8 with 150-ps HRPWM), three eCAP modules (one with HRCAP), two eQEP interfaces, and eight SDFM input channels. Communication is supported via one DCAN, one MCAN (CAN FD), two SPI, two SCI/LIN, two I²C, one PMBus, and FSI - enabling robust isolation-aware system integration in high-noise power stages.

Key Specifications

Pinout & Package

64-pin Low-profile Quad Flatpack (LQFP, PM package), 12 mm × 12 mm body size, 0.5-mm pitch, exposed thermal pad. Pinout validated per TI SPRSP61C datasheet Figures 5-3 and 5-4 for PM package variants.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar real-time control applications.

Compared with F280037SPNR, the F280039C offers 128KB more flash and 24 additional GPIOs in a larger package, while the F280037C-Q1 adds automotive qualification and safety certification without changing memory or peripheral count - making it the drop-in functional replacement for safety-critical deployments.

Availability

F280037SPNR is available at Aetrix Electronics and suitable for industrial servo drives, solar string inverters, EV on-board chargers, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for F280037SPNR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company delivering analog and embedded processing solutions with leadership in real-time control, power management, and signal chain technologies.

The TMS320F28003x product line was designed specifically for high-efficiency, ultra-low-latency power electronics control - targeting motor drives, digital power, renewable energy, and EV infrastructure where GaN/SiC switching demands sub-microsecond timing precision.

FAQ

What is the maximum operating frequency of the C28x CPU in the F280037SPNR?

The F280037SPNR features a TMS320C28x DSP core running at 120 MHz. This clock speed applies to both integer and IEEE 754 single-precision floating-point instruction execution. The CPU also integrates TMU and VCRC accelerators to reduce cycle counts for trigonometric and CRC operations, directly improving real-time loop performance in the F280037SPNR.

Does the F280037SPNR include a Control Law Accelerator (CLA)?

Yes, the F280037SPNR includes a fully functional Control Law Accelerator (CLA) operating at 120 MHz. The CLA is an independent 32-bit floating-point math accelerator with dedicated program/data RAM that executes control code in parallel with the main C28x CPU. It supports ANSI C subset and hardware task switching, and is used extensively in the F280037SPNR for time-critical current/voltage loops in motor and power applications.

What package type and pin count does the F280037SPNR use?

The F280037SPNR uses a 64-pin Low-profile Quad Flatpack (LQFP) package designated as PM. Its body size is 12 mm × 12 mm with 0.5-mm pitch. This package provides 26 GPIO pins, 16 analog input channels, and full access to core peripherals including ePWM, eCAP, CAN FD, and FSI - as confirmed in TI's SPRSP61C datasheet pin diagrams for the PM variant of F280037SPNR.

How much flash memory does the F280037SPNR have, and is it ECC-protected?

The F280037SPNR contains 256KB (128KW) of on-chip flash memory, organized into two independent 128KB banks. All flash memory is protected by Error Correction Code (ECC) circuitry to detect and correct single-bit errors and detect multi-bit errors - a critical reliability feature for mission-critical control firmware storage in the F280037SPNR.

Is the F280037SPNR qualified for automotive applications?

No, the F280037SPNR is not AEC-Q100 qualified and lacks ISO 26262 ASIL B certification. Automotive-grade alternatives include the F280037C-Q1 and F280037-Q1 variants, which share identical peripherals and memory but add automotive qualification, extended temperature support, and functional safety documentation. The F280037SPNR is intended for industrial, commercial, and renewable energy applications.